Would it be possible to add to the tiled background object the option to set the image point to centre?

The reason i ask is that i've created a lazer which bounces off objects at an angle, and i use the sprite object stretched between points to create the line, as you'd expect the image is also stretched and blurred. To get around this i used the tiled background object which works great except it rotates around the top left corner image point which can't currently be changed. The maths to offset it correctly all the time is beyond me.